Factorizations of Band Matrices Using Level 3 BLAS
Factorizations of Band Matrices Using Level 3 BLAS
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使用 3 级 BLAS 对能带矩阵进行因式分解
DOI:
10.1007/3-540-53065-7_102
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
G. R. Brozolo
中科院分区:
文献类型:
--
作者:
J. D. Croz;P. Mayes;G. R. Brozolo
This paper describes block algorithms for Cholesky and LU factorizations of band matrices. The algorithms can be implemented using Level 3 BLAS. Although they involve some extra data movement and extra arithmetic operations, on some machines they can outperform unblocked algorithms which use Level 2 BLAS. We present performance measurements to demonstrate this, on an IBM 3090 VF, a Cray 2, and a Siemens VP 400.